i just bought the splined tool to do this job this weekend.I wasn't aware i needes the other offset socket , but i could possibly rent the splined socket to you as early as monday. I got the socket from mercedes dealer for 39$, cheapest i could find it, and they don't try to rip you a new one on shipping, actually no shipping cost for me.every where else wanted 30-50$ for the tool plus 20$ freight. P.M. me if you want the tool when i'm done.